Shoe bottom ornamenting machine



April 25, 1933- H. E. EDWARDS SHOE BOTTOM ORNAMENTING MACHINE Filed Nov.28; 1931 4 Sheets-Sheet l April 25, 1933- H. E. EDWARDS SHOE BOTTOMORNAMENTING MACHINE Filed Nov. 28, 1951 4 Sheets-Sheet 2 April 1933- E.EDWARDS 1,905,961

SHOE BOTTOM ORNAMENTING MACHINE Filed Nov. 28, 1931 4 Sheets-Sheet s rEjzve Hi0? April 25, 1933. H. EDWARDS 1,905,961

SHOE BOTTOM ORNAMENTING MACHINE Filed Nov. 28. 1931 4 Sheets-Sheet 4 forW {70622 Mum Patented Apr. 25, 1933 HERBERT nnnnwnnnsor' BRQOKLINE,MASSACHUSETTS j snon BOTTOM onnantnnrme MACHINE.

Application ,filed November 28, 1931'. Serial No. 577,776.

The present invention relates to machines for use in the manufacture ofshoes, and more particularly to a machine for'ornamenting shoe bottoms.

Because of the recognized sales appeal of shoes so marked, it has beenproposed heretofore to mark the same series of parallel lines twice insuccession across the bottom of a shoe in a manner to cause the firstlines to be crossed by the secondlines and thus define a plurality oflozenges, diamonds or geometrical figures other than rhombs on the shoebottom. In order toperform .this shoe bottom cancellating operationheretofore, an operative would lay upon the shoe bottom a thin platehaving. about sixteen parallel slots and then with some form of ascribing tool mark a line on the shoe bottom employing each slotyinsuccessionas a guide.

2 Then when the first sixteen lines had been marked the slotted platewould be shifted to a new location on the marked shoe bottom and themarking operation would be repeated to cross the first sixteen lineswith the 2 second sixteen lines. As the other shoe in the pair and theother shoes in the case lots would have to be similarly marked thecancellation operation proved to be exceedingly slow, laborious andexpensive.

The principal object of the present invention is to produce a machinefor performing the cancell'ating operation in a rapid, reliable andeconomic manner. i

To the accomplishment of this object, such others as may appearhereinafter, the features of the invention relate to certain devices,combinations andarrangements of parts hereinafter described and then setforth broadly and in detail in the appended claims which possessadvantages which will be apparent to those skilled in the art. V

The various features of'the present invention will be understood readilyfrom aninspection of the accompanying drawings il lustrating the bestforms of the invention at present devised, in which,

' Figure 1 is a view in elevation-of the shoe bottom ornamentingmachine;

Fig. 2 is a view in plan; 7

Fig. 3 is a View in sectional elevation on the line 3-3, Fig. 1, thecancellating tools, however, being shown engaged with the shoe bottom;

F 4 is detail view in sectional elevation u U of the toe saddle; I Fig.5 (Sheet 1) is a view in sectional plan on the line 5-5, Fig. 3; i

Fig. 6 (Sheet 2) is adetailvi'ew in elevation of the cancellating toolsfor scratching 1 the criss-cross lineson the shoe bottom;

Fig. 7 is a detail view in sectional elevation on the line 7-7, Fig. 6;p

Fig. 8'is a planof the shoe showing its 'bottomornamenteclwithca-ncellate lines; 2

'Fig. 9 is a detail View of a detachable head carrying a plurality ofknurling tools differently mounted from the knurling tools illus't'rated in Figs. 1 and 3; V l

F igl 10 is a detail view in sectional elevation on the line lO-'10,Fig. 9, and Fig. 11 is a detail View in sectional plan on the line 1111, Fig. 10.

In the embodiment of the invention illustrated in Figs. 1, 2 and 3'th'ecancellating M tools comprise a series of knurling wheels 12, hereinshownas twenty two in number, each of which is rotatably mounted in ayoke 13 secured to the free end of a leaf spring 14. The upper end ofthe spring 14 fits into an opening 15 formed in a rectangular head 16and is secured thereto by a screw 17.

' The head. 16 is tapped at 18 to receive the shanks of two screws 19,the construction being such that thehead 16 is detachably connected to acarrier 20 mounted to travel ona pair of spaced .rails 21. The carrier20 comprises a fiat plate 22 mounted to slide upon the upper faces ofthe rails 21. Between the rails and beneath the plate 22 is arectangular block23. Mounted to slide upon the bottom faces of the rails21 is a flat plate 24 to which islse'cur'e'd a cross-bar 25 containingthe screws 19 for the head 16. The-plates 22 and 24 and the block 28 aresecured together J by four "screws26 (Fig. 1).] The carrier, 20 maybereciprocated alongthe rails 21 by means of, a handle 27 grasped by theoperative.

' The rails 21 are joined at their ends by webs28- which act as stopsfor limiting the movement of the carrier 20 ineither direcattachment toa flat base 31 which is mounted on a work bench in a shoe factory. Therails 21 and the webs 28 comprise a frame for supporting the carrier 20.

In order to support a shoe beneath the rails 21 and between the posts29, the base 31 is provided with a work support of the toe saddle andheel spindle type. To this end the base 31 is engaged by a thin flatplate 32 secured to the bottom of a yoke 33, comprising the work supportframe and bolted to the base 31 in a manner permitting the worksupporting frame to be rotated about a fixed axis on the base 31. Risingfrom the body portion of the yoke 33 is a post 34 (Figs. 3 and 4) theupper end of which is cut on curved lines to form the central stationarysection 35 of a: toe saddle. Hinged to the opposite sides of the post 34are blocks 36 which are provided with curved internal side facesadaptedto fit the curved lateral sides of the central section 35. Theblocks 36 are provided also with inclined faces 37 which cooperate withthe central section 35 to form a saddle for supporting the toe of aninverted shoe 38 from which the last 39 has not yet been pulled. Thefaces 37 are lined with felt 40 to prevent the vamp portion of the shoefrom being marred.

In order to adapt the toe saddle to support shoes having differentwidths or styles of toes, the blocks 36 may be expanded away from thepost 34. To this end a coiled spring 7 41 is interposed between the post34 and each block 36. To draw the blocks 36 towards each other againstthe tensions exerted by the springs 41 the upper end of the post 34carriesthe central portion of a threaded rod 42 the ends of which extendloosely through openings 43 formed in the post 34 and the blocks 36. Thefree ends of the rod 42 are provided with wing nuts 44 between which andthe adjacent block 36 a washer 45 is interposed. With this construction,the toe saddle is either contracted or expanded depending upon thedirection in which the nuts 44 are turned.

The heel spindle comprises a post 46 the upper end of which fits intothe usual socket formed in the heelpart of the last 39. The lower end ofthe post 46 is threaded into a block 47 providedwith trunnions 48 whichturn in a slide 49 the lateral sides of which aregrooved to embrace theedges of plates 50 secured to the arms of the yoke 33. The block 47 isengaged by a leaf spring 51 (Fig. 3) secured to the bottom of the slide49.

' With this construction the heel spindle 46 can turn on its trunnionsand thus adapt itself automatically to variations in the angularity ofthe heel spindle sockets in the lasts. Thespring 51 also exerts pressureon the heel spindle in a direction tending to hold the toe of jackedshoe in contact with the toe saddle.

In order to adapt the machine to support shoes varying widely in size,necessitating the use of heel spindles 46 varying in length, the base 31is provided with a plurality of screw threaded openings 52 which receivethe screw threaded ends of heel spindles 53 of different lengths. Thesespindles 53 may be interchanged with. thevheel spindle 46. To increasetheir usefulness and to reduce the number of auxiliary heel spindles 53,their upper ends are provided with screws 54 so that their effectivelengths may be varied.

In order to maintain the shoe bottom in the same plane, or approximatelyso, notwithstanding variations in the lengths and heights of the shoesmounted upon the work support, the plates 50 incline upwardly towardsthe toe saddle. This construction provides means for adjusting the toesaddle and heel spindle relatively both longitudinally and vertically.The longitudinal adjustment takes care of the variations in the lengthsof the shoes. The vertical adjustment locates the bottoms of theforepart of the shoes substantially in the same plane notwithstandingtheir variations in heights due to variations in lengths.

In order to lock the slide 49 in the position to which it has beenadjusted one of its grooved edges on the upper side thereof is providedwith teeth 55 engaged by a spring pressed pawl 56 pivoted upon theadjacent plate 50. The movement of the slide 49 is limited in onedirection, by a vertical pin 57 carried by one of the plates 50, and inthe other direction, by a lateral pin 58 carried by one of the arms ofthe yoke 33.

After the shoe has been jacked it may be positioned with it median linenormal to the longitudinal axis of the path of the carrier 20 so thatthe operative may, by grasping the handle 27, reciprocate the carrier 20to cause the knurling wheels to roll across the shoe bottom and knurl aseries of parallel lines thereon. As each wheel 12 is mounted upon theend of a leaf spring 14 and as the plane of the forepart of the shoe isslightly above the normal plane of the bottom of the wheels 12 theyautomatically and independently adapt themselves to the curvature of theshoe bottom as they roll thereover. After the carrier 20 has beenreciprocated to transfer the wheels 12 from the position of Fig. 1 to aposition at the oppositeside of the shoe, the work support may berotated on its pivot to bring the median line of the shoe into aposition normal to its first position and then the wheels 12 may bereturned to the position of Fig. 1, thereby knurling a series ofparallel lines on the shoe bottom normal to the first series of parallellines. The shoe bottom is thus cancellated, that is, provided with aseries of criss-cross lines.

In order that the cancellated lines may intersect in a decussa-temanner, instead of in a normal manner as just described, the base 31 isprovided with a pair of vertical pins 59 and 60 which limit the angularmovement of the work support. Each pin may be located in one of a seriesof openings 61 formed in the base 31. These openings are numberedin Fig.2 from 1 to 7, but this indicia is arbitrary as it bears no relation tothe size of the shoes 7 operated upon. When the pins 59 and 60 are inthe number 7 holes, for instance, the work support is swung first untilstopped by engagement with the pin 60. Then the carrier is reciprocatedto form the series of parallel lines 62 (Fig. 8). Then the work supportis swung into engagement with the stop pin 59. hen the carrier 20 isreturned to its normal position a series of parallel lines 63 (Fig. 8)are formed Which cross the lines .62 at an acute angle. By placing thepins 59 and 60 in different holes 61 the angle-at which one series ofparallel lines crosses the other series may be changed, thus changingthe shape of the lozenges formed between the cancellated lines.

In order to limit definitely the area of the shoe bottom cancellatedand/or predetermine the outline of the cancellated area at the juncturebetween the ball and shank of the shoe, or wherever it is desired thecancellated area should terminate, the machine is provided with a shield64 (Fig. 2) for a left shoe and a shield 65 for a right shoe. Eachshield comprises a thin plate 66 which is lined with felt on the sideengaged with the shoe. The shape of the outline of the cancellated areaalong its line of termination is determined by the shape imparted to theedge 67. As shown in Fig. 2 the edge 67 forms a reentrant angle buttheinvention contemplates shaping the controlling edge 67 in any mannerfound desirable or expedient. hen the shield is positioned on the shoethe knurling wheels rid thereover. Some of the wheels rid over theshield on one side of the shoe, then move down into engagement with thebottom of the shoe in the space bounded by the reentrant angle formed bythe controlling edge 67 and finally ride up over the shield on theopposite side of the shoe. I

The thin plate 66 is mounted detachably upon a three-sided support 68which is piv oted on the upper end of an arm 69 rising vertically from aslide 70 (Fig. 3) mounted to slide on the plate'32 in ways formed in thebottom of the yoke frame 33. The thin plate 66 of the shield 65 isdetachably mounted on a support, similar to the support 68, which ispivoted to an arm 71 rising from the slide 7 O on the opposite side ofthe shoe from the arm 69.

The slide70 may be reciprocated to vary the location of theshieldslongtudinally of the shoe by-means of a finger-piece 72 carriedby one end of a resilient plate 73, the other end of which is secured tothe slide 7 0. As shown in Fig. 3 the end ofthe finger-piece 72, engagedwith the plate 73, is extended to register, one at a time, withdepressions 74 "formed in' the upper face of a block 75 carried by theplate 32. Theblock 75 is provided'with indicia. 76 (Fig.5) to aidjtheoperative in adjusting the position of the shields longitudinally oftheshoe.

The periphery of the knurling wheels 12 may be shaped to knurl manydiflerent kinds of marks upon the shoe bottom. In order that the marksmay be printed in ink upon the shoe-bottom the posts 29 are embraced bythe collars 77 (Fig. 1) of supports 78 for ink pads 79. The supports 7 8carry also pivoted covers 80 for the ink pads. The'supports 78 may bepositioned .so that wheels 12 roll over the ink pads after eachoperating stroke. The ink picked up by the knurling wheels 12 is thentransfer-red to the shoe bottom upon the next succeeding operatingstroke. When it is desired-to use the wheels 12 as knurling wheels only,the collars 77 may be loosened on the posts 29 and the supports 78 swunginto the construction line position shown at the left viewing Fig. 1.

In order that the cancellated lineson the shoe bottom maycomprisecontinuous scratches instead of printed or knurled lines, a head81( Fig. 6) may be connected to the cross-bar 25 in the place of thehead 16. The head 81 carries a series of leaf springs 82 the free ends83 of which are pointed to form a series of parallel grooves orscratches on the shoe bottom. These scratching tools ride over the shoebottom and incidentally the shield, if one is used, exactly like thewheels 12. Thatis, the scratching tools automatically and'individuallyadapt themselvesto the shoe bottom curvatures engaged thereby. In steadof mounting the knurling wheels 12 or the scratching tools 83 on thefree ends of leaf springs they may be each mounted, as illustrated inFigs. 9, 1O and- 11, upon the lower end of a slide 84 mounted to slidevertically in ahead 85 capable of being connect ed detachably tothecross-bar 25 of the carrier 20. Near its upper end the slide 84 isprovided with a lateral pin 86 which normally engages the bottom of aslot 87 formed in a cover plate 88 secured to one face of the head 85.Mounted in a separate chamber 89 in the head 85 is a coiled spring 90which is interposed between the upper end of the slide 84 and a plate 91forming a cover plate for the spring chambers.

With this construction the tools move vertically,

cancellating instead of laterally, in

adapting themselves automatically and individually to the shoe bottomcurvatures.

Nothing herein explained is to be interpreted as limiting the variousinventions in nection with the particular apparatusor the particularmode of operation or bothselected for purposes of illustration andexplanation. 'While the particulars of construction herein set forth arewell suited to one mechanical form of the invention, it is not limitedto these details of construction, nor to the conjoint use of all itsfeatures, nor is it to be understood that these particulars areessential since they may be modified within the skill of the artisanwithout departing from the true scope of the actual inventions,characterizing features of which are set forth in the, following claimsby the intentional use of generic terms and expressions in clusive ofvarious modifications.

What is claimed as new, is:

1. In a shoe bottom ornamenting machine, the combination with a worksupport and a frame, of means carried by the frame and movable laterallyacross the work support for cancellating the bottom of the shoe mountedthereon.

2. In a shoe bottom ornamenting machine, the combination with a frame, awork support and means carried by the frame and movable laterally bodilyacross the work sup port for cancellating the bottom of the shoe mountedthereon, of means for confining the cross-lines to a predetermined area.

3. In a shoe bottom ornamenting machine, the combination with a basemember, a work support mounted thereon angularly movable about a fixedaxis through a predetermined arc, and a frame, of means carried by theframe and movable laterally across the work support for marking thebottom of the shoe mounted upon the work support at the limit of itsmovement in both directions.

4. In a shoe bottom ornamenting machine, the combination with a worksupport and a frame, of means carried by the frame and movable laterallyacross the work support for forming a plurality of substantiallyparallel marks upon the bottom of the shoe mounted thereon.

-5. In a shoe bottom ornamenting machine, the combination with a basemember, a work support mounted thereon angularly movable about a fixedaxis through a predetermined arc, and a frame, of means carried by theframe and movable laterally across the work support for forming aplurality of substantially parallel marks upon the bottom of the shoemounted upon the work support at the limit of its movement in bothdirections.

6. In a shoe bottom ornamenting machine, the combination with a basemember, awork support, a frame and means carried bysaid frame havinglateral movement in opposite directions across the Work support forforming a plurality of substantially parallel lines a fixed axisrelatively to said line forming means.

7. In a shoe bottom ornamentmg machme,

the combination with a work support angularly movable about a fixed axisin opposite directions, a frame, and means carried by said frame havingstraight line movement laterally in opposite directions for forming aplurality of substantially parallel marks upon the bottom of the shoemounted on the work support, of means for correlating the direction ofmovement of said mark forming means and the angular position of the worksupport to cause the parallel marks formed during the travel of saidmark forming means in one direction to intersect the parallel marksformed during the travel of said mark forming means in the otherdirection.

8. In a shoe bottom ornamenting machine,

the combination with a work support, a frame and means carried by theframe and movable laterally bodily across the work support forcancellating the bottom of the shoe mounted upon the wor; support, of ashield for confining the cross-lines to a predetermined area.

9. In a shoe bottom ornamenting machine, the combination with a worksupport, a frame and means carried by the frame and movable laterallybodily across the work support for cancellating the bottom of the shoemounted thereon, of a shield movable into and out of a position over theshoe bottom.

10. In a shoe bottom ornamenting machine, the combination with a frame,a work support having a toe saddle and a heel spindle relatively movableto accommodate different sizes of shoes, and means carried by the frameand movable laterally bodily across the work support for cancellatingthe bottom of the shoe mounted upon the work support, of a shieldmovable laterally into and out of a position over the shoe bottom andlongitudinally thereof.

11. In a shoe bottom ornamenting machine, the combination with a frame,a Work support having a toe saddle and a heel spindle relatively movablevertically and longitudinally to accommodate different sizes of shoes,and means carried by the frame and movable laterally bodily across thework support for cancellating the bottom of the shoe mounted upon thework support, of a shield'movable laterally into and out of a positionover the shoe bottom and longitudinally relatively to the toe saddle andheel spindle.

12. In a shoe bottom ornamenting machine, the combination with a frameand a work support, of means carried by the frame chine,

and movable laterally across the work support for cancellating thebottom of the shoe mounted thereon, said means comprising a plurality ofmarkers mounted to automatically adapt themselves to the curvature ofthe shoe bottom.

13. In a shoe bottom ornamenting machine, the combination with a frameand'a work support, of means carried by the frame and movable laterallyacross the work support for cancellating the bottom of the shoe mountedthereon, said means comprising a plurality of markers each mounted toautomatically adapt itself to the height and curvature of that portionof the shoe bottom engaged thereby.

14. In a shoe bottom ornamenting machine,

a plurality of marking tools, a head therefor, a stem for each toollongitudinally slidably mounted in the head, and a spring mounted in thehead to exert pressure on each stem.

15. In a shoe bottom ornamenting machine, a plurality of marking tools,a head therefor, a stem foreach tool longitudinally slidably mounted inthe head, means for limiting the movement of the stem in one directionunder the influence of gravity and a spring for resisting the movementof the stem in the other direction.

16. In a shoe bottom ornamenting mathe combination with a work supportand a frame, of means carried by the frame and movable laterally acrossthe work support for inking cancelli on the bottom of the shoe mountedthereon.

17. In a shoe bottom ornamenting machine, the combination with a worksupport and a frame, of means carried by the frame and movable laterallyacross the work support for inking a plurality of substantially parallellines across the bottom of the shoe mounted thereon.

18. In a shoe bottom ornament-ing machine, the combination with a Worksupport and a frame, of means carried by the frame and movable laterallybodily across the work support including a plurality of marking toolsfor scratching substantially parallel lines across the bottom of a shoemounted on the work support.

19. In a shoe bottom ornamenting machine, the combination with a basemember, a work support, a frame, and frame carrying members supported bysaid base member and carrying marking material, of means carried by theframe, engageable with the marking material, and movable laterallyacross the work support for marking substantially parallel lines on thebottom of a shoe mounted on the work support.

In testimony whereof I have signed my name to this specification.

HERBERT E. EDWARDS.

